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  • 1.
    Ahlgren, Per
    et al.
    University of Borås, Swedish School of Library and Information Science.
    Jarneving, Bo
    University of Borås, Swedish School of Library and Information Science.
    Rousseau, R.
    Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient2003In: Journal of The American Society For Information Science And Technology, ISSN 1532-2882, E-ISSN 1532-2890, Vol. 54, no 6, p. 550-560Article in journal (Other academic)
    Abstract [en]

    Ahlgren, Jarneving, and. Rousseau review accepted procedures for author co-citation analysis first pointing out that since in the raw data matrix the row and column values are identical i,e, the co-citation count of two authors, there is no clear choice for diagonal values. They suggest the number of times an author has been co-cited with himself excluding self citation rather than the common treatment as zeros or as missing values. When the matrix is converted to a similarity matrix the normal procedure is to create a matrix of Pearson's r coefficients between data vectors. Ranking by r and by co-citation frequency and by intuition can easily yield three different orders. It would seem necessary that the adding of zeros to the matrix will not affect the value or the relative order of similarity measures but it is shown that this is not the case with Pearson's r. Using 913 bibliographic descriptions form the Web of Science of articles form JASIS and Scientometrics, authors names were extracted, edited and 12 information retrieval authors and 12 bibliometric authors each from the top 100 most cited were selected. Co-citation and r value (diagonal elements treated as missing) matrices were constructed, and then reconstructed in expanded form. Adding zeros can both change the r value and the ordering of the authors based upon that value. A chi-squared distance measure would not violate these requirements, nor would the cosine coefficient. It is also argued that co-citation data is ordinal data since there is no assurance of an absolute zero number of co-citations, and thus Pearson is not appropriate. The number of ties in co-citation data make the use of the Spearman rank order coefficient problematic.

  • 2.
    Ahlgren, Per
    et al.
    University of Borås, Swedish School of Library and Information Science.
    Jarneving, Bo
    University of Borås, Swedish School of Library and Information Science.
    Rousseau, Ronald
    Letter to the editor. Author Cocitation Analysis and Pearson's r2004In: Journal of The American Society For Information Science And Technology, ISSN 1532-2882, E-ISSN 1532-2890, Vol. 9, no 55, p. 843-844Article in journal (Other academic)
  • 3.
    Ahlgren, Per
    et al.
    University of Borås, Swedish School of Library and Information Science.
    Jarneving, Bo
    University of Borås, Swedish School of Library and Information Science.
    Rousseau, Ronald
    Letter to the editor. Rejoinder: In Defense of Formal Methods2004In: Journal of The American Society For Information Science And Technology, ISSN 1532-2882, E-ISSN 1532-2890, Vol. 10, no 55, p. 935-936Article in journal (Other academic)
  • 4.
    Byström, Katriina
    et al.
    University of Borås, Swedish School of Library and Information Science.
    Hansen, Preben
    Conceptual Framework for Tasks in Information Studies2005In: Journal of The American Society For Information Science And Technology, ISSN 1532-2882, E-ISSN 1532-2890, Vol. 56, no 10, p. 1050-1061Article in journal (Refereed)
  • 5.
    Hammarfelt, Björn
    Institutionen för ABM, Uppsala Universitet.
    Citation analysis on the micro-level: The example of Walter Benjamin’s Illuminations2011In: Journal of The American Society For Information Science And Technology, ISSN 1532-2882, E-ISSN 1532-2890, Vol. 62, no 5, p. 819-830Article in journal (Refereed)
    Abstract [en]

    This article employs citation analysis on a micro level—the level of the cited document; in this case, WalterBenjamin’s Illuminations (1968/2007). The study showshow this frequently cited publication—more than 4,000citations in Web of Science—has been received. Thegrowth of citations and interdisciplinary citing is studied,and a novel approach—page citation analysis—is appliedto study how different parts of Illuminations have beencited.The article demonstrates howbibliometric methodscan be used together with qualitative accounts to mapthe impact and dissemination of a particular publication.Furthermore, it shows how bibliometric methods can beutilized to study intellectual structures in the humanities,and highlights the influence of the humanities onthe social sciences and sciences.

  • 6.
    Maurin Söderholm, Hanna
    et al.
    University of Borås, Swedish School of Library and Information Science.
    Sonnenwald, Diane H.
    University of Borås, Swedish School of Library and Information Science.
    Cairns, Bruce
    Manning, James E.
    Welch, Greg F.
    Fuchs, Henry
    Exploring the potential of video technologies for collaboration in emergency medical care: Part II. Task performance2008In: Journal of The American Society For Information Science And Technology, ISSN 1532-2882, E-ISSN 1532-2890, Vol. 59, no 14, p. 2335-2349Article in journal (Refereed)
    Abstract [en]

    We conducted an experiment with a posttest, between-subjects design to evaluate the potential of emerging 3D telepresence technology to support collaboration in emergency health care. 3D telepresence technology has the potential to provide richer visual information than do current 2D video conferencing techniques. This may be of benefit in diagnosing and treating patients in emergency situations where specialized medical expertise is not locally available. The experimental design and results concerning information behavior are presented in the article “Exploring the Potential of Video Technologies for Collaboration in Emergency Medical Care: Part I. Information Sharing” (Sonnenwald et al., this issue). In this article, we explore paramedics' task performance during the experiment as they diagnosed and treated a trauma victim while working alone or in collaboration with a physician via 2D videoconferencing or via a 3D proxy. Analysis of paramedics' task performance shows that paramedics working with a physician via a 3D proxy performed the fewest harmful interventions and showed the least variation in task performance time. Paramedics in the 3D proxy condition also reported the highest levels of self-efficacy. Interview data confirm these statistical results. Overall, the results indicate that 3D telepresence technology has the potential to improve paramedics' performance of complex medical tasks and improve emergency trauma health care if designed and implemented appropriately.

  • 7.
    Sonnenwald, Diane H.
    et al.
    University of Borås, Swedish School of Library and Information Science.
    Maurin Söderholm, Hanna
    University of Borås, Swedish School of Library and Information Science.
    Cairns, Bruce
    Manning, James E.
    Freid, Eugene B.
    Welch, Greg F.
    Fuchs, Henry
    Exploring the potential of video technologies for collaboration in emergency medical care: Part I. Information sharing2008In: Journal of The American Society For Information Science And Technology, ISSN 1532-2882, E-ISSN 1532-2890, Vol. 59, no 14, p. 2320-2334Article in journal (Refereed)
    Abstract [en]

    We are investigating the potential of 3D telepresence, or televideo, technology to support collaboration among geographically separated medical personnel in trauma emergency care situations. 3D telepresence technology has the potential to provide richer visual information than current 2D videoconferencing techniques. This may be of benefit in diagnosing and treating patients in emergency situations where specialized medical expertise is not locally available. The 3D telepresence technology does not yet exist, and there is a need to understand its potential before resources are spent on its development and deployment. This poses a complex challenge. How can we evaluate the potential impact of a technology within complex, dynamic work contexts when the technology does not yet exist? To address this challenge, we conducted an experiment with a posttest, between-subjects design that takes the medical situation and context into account. In the experiment, we simulated an emergency medical situation involving practicing paramedics and physicians, collaborating remotely via two conditions: with today's 2D videoconferencing and a 3D telepresence proxy. In this article, we examine information sharing between the attending paramedic and collaborating physician. Postquestionnaire data illustrate that the information provided by the physician was perceived to be more useful by the paramedic in the 3D proxy condition than in the 2D condition; however, data pertaining to the quality of interaction and trust between the collaborating physician and paramedic show mixed results. Postinterview data help explain these results.

  • 8.
    Söderholm Maurin, Hanna
    et al.
    University of Borås, Swedish School of Library and Information Science.
    Sonnenwald, Diane
    University of Borås, Swedish School of Library and Information Science.
    Visioning Future Emergency Healthcare Collaboration: Perspectives From Large and Small Medical Centers2010In: Journal of The American Society For Information Science And Technology, ISSN 1532-2882, E-ISSN 1532-2890, Vol. 61, no 9, p. 1808-1823Article in journal (Refereed)
    Abstract [en]

    New video technologies are emerging to facilitate collaboration in emergency healthcare. One such technology is 3D telepresence technology for medical consultation (3DMC) that may provide richer visual information to support collaboration between medical professionals to, ideally, enhance patient care in real time. Today only an early prototype of 3DMC exists. To better understand 3DMC's potential for adoption and use in emergency healthcare before large amounts of development resources are invested we conducted a visioning study. That is, we shared our vision of 3DMC with emergency room physicians, nurses, administrators, and information technology (IT) professionals working at large and small medical centers, and asked them to share their perspectives regarding 3DMC's potential benefits and disadvantages in emergency healthcare and its compatibility and/or lack thereof with their and their organization's current ways of working. We found that social and technical challenges can be identified regarding new innovations even before working prototypes are available. The compatibility of 3DMC with current ways of working was conceptualized by participants in terms of processes, relationships, and resources. Both common and unique perceptions regarding 3DMC emerged, illustrating the need for 3DMC, and other collaboration technologies, to support interwoven situational awareness across different technological frames.

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